Willard was at the intersection of Willard Road (now Stonecroft Boulevard) and Sterling Road (now Horsepen Road), surrounded by extensive farmland, housing, schools, places of worship, the Willard store (until 1907), and Blue Ridge Airfield (1938–1951). Willard stood west of Floris, north of Pleasant Valley, and south of Farmwell (now Ashburn). Willard was regarded as a crossroads and a distinctive community until construction of Washington Dulles International Airport began in 1958.

Approximately 26 square miles (67 square kilometers) of Virginia land from Willard, Chantilly, Pleasant Valley, Sterling, and Ashburn was bought for construction. By the airport's completion, all remains of civilization before 1958 on this land had virtually disappeared, except a stretch of Willard Rd (used as a service road), and three storage outbuildings between Runways 1C/19C and 1R/19L.